package com.example.takeaway.common;

import java.lang.Long;
import com.baomidou.mybatisplus.core.handlers.MetaObjectHandler;
import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.reflection.MetaObject;
import org.springframework.stereotype.Component;

import java.time.LocalDateTime;


/**
 * 自定义元数据对象处理器
 */

@Component
@Slf4j
public class MyMetaObjectHandler implements MetaObjectHandler {

    /**
     * 插入参数 自动填充
     * @param metaObject 元对象
     */
    @Override
    public void insertFill(MetaObject metaObject) {
        log.info("公共字段 自动填充 insert --->{}",metaObject.toString());

        metaObject.setValue("createTime", LocalDateTime.now());
        metaObject.setValue("updateTime",LocalDateTime.now());
        metaObject.setValue("createUser",BaseContext.getCurrentId());
        metaObject.setValue("updateUser",BaseContext.getCurrentId());

    }

    /**
     * 更新数据自动填充
     * @param metaObject 元对象
     */
    @Override
    public void updateFill(MetaObject metaObject) {
        log.info("公共字段  自动填充  update  ----> {}",metaObject.toString());

        long id = Thread.currentThread().getId();
        log.info("当前线程的id是——————》{}",id);

        metaObject.setValue("updateTime",LocalDateTime.now());
        metaObject.setValue("updateUser",BaseContext.getCurrentId());
    }
}

